This is a discussion on Exhaust FAQ within the Engine Modifications forums, part of the Tech & Modifying & General Repairs category; Hello, all. First time posting...
I have a 2002 WRX, and I'm looking to get a turboback exhaust in the ...

I have a 2002 WRX, and I'm looking to get a turboback exhaust in the near future. Only thing is I'm looking for something that isn't too loud, something like the TurboXS stealth back which uses the stock WRX muffler seems like a good choice. Does anyone have, or know anything about these? Also, I can't seem to find any other options as far as "stealth" exhausts go. Maybe I'm not looking hard enough.

I have a 2002 WRX, and I'm looking to get a turboback exhaust in the near future. Only thing is I'm looking for something that isn't too loud, something like the TurboXS stealth back which uses the stock WRX muffler seems like a good choice. Does anyone have, or know anything about these? Also, I can't seem to find any other options as far as "stealth" exhausts go. Maybe I'm not looking hard enough.

For $40-50 you can get an adapter that will change a 3" downpipe fitting to the stock dimensions for your factory cat-back. I haven't personally used one but I've heard good reviews. Anything to the rear of your downpipe is pretty much just sound preference, gains are minimal at that point, so if you want something inexpensive, get a good downpipe and an adapter fitting.

I am investing in a Megan racing down pipe, only like $150, it will make a conservative sound not the obnoxious fart cannons ricers love to use at all, and when you reach the higher rpm's that's when you can really hear it roar, it also comes with new gaskets for you which is what i really like from the website.

For $40-50 you can get an adapter that will change a 3" downpipe fitting to the stock dimensions for your factory cat-back. I haven't personally used one but I've heard good reviews. Anything to the rear of your downpipe is pretty much just sound preference, gains are minimal at that point, so if you want something inexpensive, get a good downpipe and an adapter fitting.

This sounds good. Although I'm pretty sure I have a small leak in my stock midpipe, so I'll probably pick up a new 3" mid-pipe as well and get the 3-2" fitting into the stock rear exhaust pipe.

I'm thinking of going catless down/up with a highflow mid, has anyone from NY passed emissions with this setup on a 02 WRX?

I'm thinking of going catless down/up with a highflow mid, has anyone from NY passed emissions with this setup on a 02 WRX?

NY requires an annual visual inspection of the emission control devices. If the tech doesn't know what he's looking for or doesn't even bother (quite common), then as long as you aren't throwing a code and your readiness monitors are online, you'll be fine.

I was about to buy an Invidia divorced DP when I read an article on the cobb website stating that it gives you problems. It says there are big temp changes on each pipe leading to cracks. Also its somtimes harder to bring boost on quicker as if it helps the "wastegate function too well." They recommend a bellmouth DP, which I thought gives you too much turbulence. So whats the deal here?

I was about to buy an Invidia divorced DP when I read an article on the cobb website stating that it gives you problems. It says there are big temp changes on each pipe leading to cracks. Also its somtimes harder to bring boost on quicker as if it helps the "wastegate function too well." They recommend a bellmouth DP, which I thought gives you too much turbulence. So whats the deal here?

Basically they both seem to work relatively equally well. I haven't heard anything but good reviews on the Invidia and I haven't had any issues with cracking or boosting on my MadDad DWG. Cobb only sells bellmouth so it is their preference apriori.

"From a little spark may burst a mighty flame." - Dante
"The stitch is lost unless the thread is knotted." - Italian proverb

Non-mechanical new guy needs help

Once upon a time...
So I sold my Ford Expedition and bought a 5 speed Subaru WRX. When I bought it the previous owner told me the catalytic converter would need to be replaced. When I drive it, there seems to be a light thudding under the car. I've been told it might be an exhaust leak, which apparently is popular here in upstate consider all my friends have exhaust leaks in their cars. So I might as well replace the whole exhaust. I'm planning on replacing the cat and everything behind it. Price at a dealership to purchase a STI cbe and get it installed is $725. Guy at work praises AVO. Even though STI is factory, is it just as good as aftermarket? Any suggestions on what to do?

Once upon a time...
So I sold my Ford Expedition and bought a 5 speed Subaru WRX. When I bought it the previous owner told me the catalytic converter would need to be replaced. When I drive it, there seems to be a light thudding under the car. I've been told it might be an exhaust leak, which apparently is popular here in upstate consider all my friends have exhaust leaks in their cars. So I might as well replace the whole exhaust. I'm planning on replacing the cat and everything behind it. Price at a dealership to purchase a STI cbe and get it installed is $725. Guy at work praises AVO. Even though STI is factory, is it just as good as aftermarket? Any suggestions on what to do?

Buy used parts from the classified section on here/Nasioc, install it yourself, and have $500+ in your pocket...

I'm thinking of going catless down/up with a highflow mid, has anyone from NY passed emissions with this setup on a 02 WRX?

im my own inspector, but my map includes Cat rediness monitors & cel disable so it hooks up to the machine and passes everytime. now if your in nyma(metro area) where they do dyno tests im not sure. but as long as your rediness is passed and cel not on and the tech doesnt notice you dont have a cat or doesnt realise there should b one there you should pass.

im my own inspector, but my map includes Cat rediness monitors & cel disable so it hooks up to the machine and passes everytime. now if your in nyma(metro area) where they do dyno tests im not sure. but as long as your rediness is passed and cel not on and the tech doesnt notice you dont have a cat or doesnt realise there should b one there you should pass.

I was a NJ state inspector and I dont know if it's different in NY but we didn't have 4 wheel dynos, all 4wd cars only got the idle test. Do they use 4 wheel dynos in NY?

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